Evidence map›Paper›PMID 33459103›Full record

SynthesisThe Journal of international medical research2021

Serum uric acid level as a biomarker for chronic obstructive pulmonary disease: a meta-analysis.

Herui Li, Yan Chen

Abstract readMeta-Analysis
In one paragraph

Synthesis in The Journal of international medical research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

5 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Article
  4. Review
  5. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

2 authors.

Herui LiDepartment of Respiratory Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan Province, China.ORCID https://orcid.org/0000-0002-3729-8205
Yan ChenDepartment of Respiratory Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan Province, China.ORCID https://orcid.org/0000-0002-7713-6913

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo determine if there is a relationship between the levels of serum uric acid and the different Global Initiative for Chronic Obstructive Lung Disease (GOLD) stages (1-4) classified by the severity of the airflow limitation in patients with stable chronic obstructive pulmonary disease (COPD).

methodsElectronic databases, including PubMed®, Embase®, Web of Science™ and China National Knowledge Infrastructure (CNKI), were searched from inception to December 2018. Observational studies that reported serum uric acid levels in stable COPD patients were included. Two investigators independently extracted data and RevMan version 5.3 was used to carry out the statistical analyses.

resultsSeven studies with 932 stable COPD patients and 401 healthy control subjects were included in this meta-analysis. Serum uric acid levels were significantly higher in stable COPD patients compared with healthy control subjects (mean difference [MD] 1.91, 95% confidence interval [CI] 1.55, 2.28). Serum uric acid levels were significantly lower in the GOLD 1+2 subgroup compared with the GOLD 3+4 subgroup (MD -1.39, 95% CI -1.63, -1.15).

conclusionSerum uric acid might be a useful biomarker for identifying disease severity in stable COPD patients, but further studies are needed to confirm this finding.

Indexed as

Pulmonary Disease, Chronic ObstructiveUric AcidBiomarkersChinaHumansLungBiomarkersUric AcidbiomarkerChronic obstructive pulmonary diseasemeta-analysisuric acid

Identifiers

PMID33459103
PMCPMC7816533

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.